old project to be published to tomcat6 within Eclipse3.3

I have a project running under Tomcat 5 (BTW I dont think the tomcat version is a problem here). This was coded within an old version of Eclipse and saved to a CVS repository from where I am now getting the code.

Now I have checked out the code to my IDE (Eclipse 3.3) and would like to publish it to my local Tomcat (version 6).

I have configured Tomcat within Eclipse and it is running, I can start and stop it. But when it comes to publish the project, I am not able to do it.

When I go to the "servers" view and rightclick on Tomcat + select "add and remove projects...", it says : "There are no project that can be added or removed from the server.".

I also cannot find anything "self-explaining" within the project properties like "add web capabilities" or similars...